^start of line
\s*any whitespace character, repeated any number of times
objectthe literal text object (case sensitive) \sany whitespace character
\w*any word character, repeated any number of times
:the literal : (5810 / 728 / 3A16)
\sany whitespace character
TcxRadioGroupthe literal text TcxRadioGroup (case sensitive) .*?any character, repeated any number of times
\na line-feed (newline) character (ASCII 10)
\1the text saved by group 1
endthe literal text end (case sensitive) g modifier: global. Finds all matches instead of stopping after the first
m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string
s modifier: single line. Allows a dot to match line terminators